Last Friday, former Ole Miss defensive lineman KD Hill was in a car wreck in Alabama along with his brother. While there were thankfully no fatalities, KD had to have his leg amputated at the scene.
CUDA-kdtree, as the project name implies, implements GPU-based KD-tree algorithm, which is described in this paper: Real-Time KD-Tree Construction on Graphics Hardware. K. Zhou, Q. Hou, R. Wang, B.